Kinematographic apparatus.



5 SHEETS-SHEET 1.

Patented Nov. 10, 1914 KINEMAIOGRAPHIG APPARATUS.'

APYLIoATloN rILED MAB.25, 1913.

T. H. BOLAM & S. N. BARNARD.

'1'. H. BOLAM 6L S. N. BARNARD.

KINEMATOGBAPHIG APPARATUS.

APPLICATION FILED KAB.25, 1913.

5 SHEETS-SHEET 2.

Patented NOV. 10, 1914.

i@ QMMM T. H. BOLAM & S. N. BARNARD.

KINEMATOGRAPHIC APPARATUS.

APPLICATION YILED KAB.25. 1913.

Patented NOV. 10, 1914. y

s summa-SHEET s.

T. H. BOLAM & S. N. BARNARD.

KINEMATOGRAPHIG APPARATUS.

APPLmATIoN FILED MAR.25. 1913.

Patented Nov. 10, 1914.

5 SHEETS-SHEET 4.

/Muw MMM Awa/W w77 mw C. H. 31AM www@ T. H. BOLAM & S. N. BARNARD.

KINEMATOGRAPHIC APPARATUS.

APPLICATION FILED MAILZS. 1913.

Patented NOV. 10, 1914.

6 BHEETB-BHEBT 6.

Q11. qui@ YNL' Now/e1- FETERS C0 PNOTOLn-no., WASHINGTON, oV C UNTTEBSTATES PATENT OFFICE.

THOMAS HORACE BOLAM AND SIDNEY NORMAN BARNABD, OF WEST EALING,

' ENGLAND.

KINEMATOGRAPHIC APPARATUS.

To all 'whom it may 00ncer1uf* Be it known that we, THoMAs y-HoRAonBoLAM and SIDNEY NORMANBRNARD, both subjects'of the King of GreatBritain, re-l; siding at 4-173 Uxbridge'roa'd, Westv Ealing',A

This invention relatesto kinematograp'hic`v apparatus of the kind-vvh'erein"a'l cylindrical.' drum carrying a film or 'the like'infarigid-f manner is intermittently!r0t-ated"around andV longitudinallymovedA past alen's, so thata" helical path `of photographsf'c'a'n betakenV on the film and afterward viewed or-projected With akinematographicfeifect.

The chief object of the presentinvention is to simplify and chea'pen theconstruction of such apparatusand`to render Ethesa'r'ne more-suitablefor projecting the'f'ph'oto4' graphs onto a screen than hasheretofore'been possible. v I .v

According to y this invention the tilm or the like is supported in acylindrical manner by a suitable device or devices engaging the openends of the cylindrically formed film. For this prpose rthe'film issupported in its cylindrical forrn-upon and between two members whichare so arranged as to constitute xa rigid structure or'skeleton drumcapable of being rotated and simultaneously moved in a longitudinaldirection. In this manner the film is supported only at its ends andthus the projecting lamp can be arranged in a fixed position oppositethe lens and between the film supporting members so as to permit thenecessary lon git-udinal movement of the film supporting members to takeplace. The film supporting members are detachably connected together sothat they can be separated to enable the film to be readily placedin'position or removed as desired. For this purpose one of the filmsupporting members is fixed to -a sleeve or the like to which the otherfilm supporting member is adapted to be detachably connected the saidsleeve being mounted on a stationary shaft and provided With a helicalgroove with which engages a pin or the like on the said shaft so thatwhen the film supporting members are rotated they are simultaneouslymoved longitudinally along the shaft.. In a modii vSpecification ofLetters Patent. l.

Application filed March 25, 1913. Serial No. 756,678.

fication the said'film members are Aconnected together'fthrough' theinter-'f vention of-suitable' rods and a fasteningdel.. vleefandin thiscase .one of the said' mern' vbes 'is provided viwith a projectionWhichl engages With a helical groove formed in the stationary shat,'s`o'that `the longitudinal movement of the members :can be obtained. The twofilm supporting meriibers are pro- Vvided with be'veledor inclinedperipheries or surfaces -vvhich serve as wedges so that ivvhen the twomembersarefadjusted tovvard`v eachother, they engage With the ,ends oftheA cyli11dri'cal"-'filmFand hold' the same firmly: in position; 535.".ait-51': v v

l`The -mechani sm for effecting the rotation of the filmsupportingv'iiienbers Whicha'si4 a-foresaidfc'onstitute a film drum, isoperatively connected vWith'the drum insuch a manner that it moveslongitudinally with" the same andconsequen'tly always remains infiengagement *therevvithf lFor Vthis lpuri pose, in Vone 1constructionsuitable lgearing actuated by the'usuall op'erating'handle with whichthe apparatus lTis"provided, lis carried byva sliding frame movable'lwith theftilm drum and is adapted to rotate" a'vvorml or lcam devicewhich engageswitli a Worm' Wheel sor other? toothed f yvheelfiattachedto one 'ofthe film''supporting members."'-'The worm or cam Adevice is soformed that an intermittent rotation is 4imparted to the film drum bythe continuous rotation of the said Worm l0r cam device. Insteadofemploying a continuously rotating Worm or cam device engaging with aWorm Wheel or the like on the -film supportingy member as aforesaid, Wemay use a reciprocating pawl adapted to engage with vteeth on the filmdrum which pawl is carried on the sliding frame, and is actuated by'arotatable cam that is also mounted so as to travel longitudinally withthe drum.

Mechanism is provided for adjusting ror focusing the lens mounted in anappropriate manner in a casing which also carries a vie finder.

The film is originally in the 4form of a strip and at one end isprovided with suitable clips or fastening devices which 'are adapted toengage With slots or the like in the other end of the strip., In orderthat the said invention may bev clearly understood and readily carriedinto effect, AWe will describe the'fsame more fullyl soi ner inWhich-they `are. connectedftbgether.

Fig'. iSaview of ,one 'ofi'tlgex 'tilxii support: Y. ingelerfiers'(endeiiiertaiilee.Parts-lidia;- connected frornhe other rn-ember.' Figs.8 A and) are` end "views of the lilxn'iA supporting,

12 Uu'S't/Ifit 'ileteil cof hejiw finder and; focusing device shown inFig.. 4. Y.Figs '13 and 14 are detail,view-As, illustratinggone waygI ofconnecting the ends of the film strip, f Like. letters@ efserencedenote.- similar parts in all thefigures.,l A. l g; a is the usual"hingedubox or casing-@ther apparatus; b .isjthe stationary shaftdetach# ablymountedfin .suitable sockets -a Aa'fat- -1 mehr@ t0 theCasing, athe-S11aft.fbeing, ;held.

in-vl position by. jspiri'g.l .controlled retaining a3 isprfovided-andgis adapted f to; actuate the rotating shutteraqariangedadjacent to thel lensfain the front v'part y,ofqthe@box/orcasin g through suitable toothed{gearing-Mythe,A

shaft a and bevel gearing a1. yC and d represent the film'supportingmembers around Whichthe kilme is. held as,-

shown in Fig. l'. Intheexampleshown lin Figs. to 3, the film supportingmember c is rigidly secured 'to'one end-of a helical coil or sleevefwhich is capable of longitudinalV displacement on the stationary shaftb. The other end of the Ahelical coil or s'leeveis adaptedto receive'thelilm supporting inember d in suclra manner that it is centrallyimountedthereon and retained in position by; a nut f engaging a threadedportionof1 the said coilfor sleeve f E(see Fig. 3). -Thetwo filmsupporting members c and d are provided with beveled or inclinedsurfaces,'so that they enter the ends of thecylindrical film and serveas circular Wedges to rigidlyy support the film in a true cylindricalforma-c tion. The two members when connected to-t gether as aforesaid,constitute what' may be termed a skeleton drum Which can be rotatedVaround and `longitudinally moved along the stationary shaft b.

The mechanism for imparting rotation to the drum is carried on a frame gslidably mounted on a rotary shaft )i anda guide shaft or bar g- Thesaid mechanism inthe example'shown in Figs. 1 and 2 comprises bevelwheels g2 and'g3 'the former g2 being mounted on the-rotary shaft L soas to revolve therewith and also slide upon the same by means o a keyand keyway connection, the other' bevel Wheel g3 being secured to aspindle or shaft g4 carrying a Worm or cam device g5 ivhich meshes orengages with a Worm 'or'fotheritoothed Wheel c rigidly attached to thefilm supporting member c. The Worm or camdevice g5 is so formed thatwhen engaging with the worm wheel or the like c and during a portionoffits rotation: it will not cause a rotationofthe Worm Wheel.Inthi,s.mannerlan.,interrjllnittent rotation can be imparted tol thedru'dmubyzthe continuous rotation .of the worm,A gthrough the bevel gear.wheels g2 g-jand theshaft h, which latf. ter is Connected through the-gearing a5 to the operating handle. The necessary 'andsimultaneouslongitudinal movement' is imparted to Athe film drum in vtheexample shown inFig.- 1 by lmeans: oiga-.projection or pin OIL.theestationalyhaft vb engaging l 'Withthe aforesaid helical coil or,sleeve f.

The'worm Whe/615C. isf-arranged to rotate in a slotted portion g6 .ofl:the sliding frame so :that as the-.druln-moves longitudinally thesliding framewill also be mov'ed longitudinally onjrtheshaftghfand guiderod g.

vA n electric proje'ctingp; lamp vand lens arem'ounted in-a' casingbia-which is secured |to theshaftfandypreferably by the pin b" whichengages the helical coil as aforesaid. 'lhe' :lens :as rais. @preferablyfrictionally held ingagsleeve which Canfbe adjusted to focus .the lensby means-of alfa-ck a9 onthe-sleeve and a pinion (LY'engag'ingtherewith, which pinionis vmounted -onva shaft a that is rotatedbyamilled head or knob a12 on the eX- terior of'the casing.

The `electric current may be supplied to the lamp from a suitablebattery or accumulator b3 from which a conducting wire b* passes throughthe stationary shaft to connect with the lamp, the current beingreturned through the metal of the shaft which is connected by a wire b5to the battery b3. The lens a8 can be mounted so that it may besubstituted by an eyepiece, whenuthe pictures are to be observed. Whenobserving, an electric lamp is arranged in a suitable position toilluminate the vpictures as they pass the eyepiece and a switch may beprovided on the box or casing for completing the circuit for either theprojecting lamp or the observing lamp, and also for breaking both thesaid circuits.

In the modification shown in Figs. 4 to 9, ratchet and pawl gearing isemployed for e'fectingthe rotation'of the drum and variousotheralterations are made, but the general construction and Working ofthe apparatus remain the same as in the modiframeg and 'is so shapedat'its rear end as to beengaged bya-cam h2 forming part ofasleevet-a-wbichis mounted on the rotary shaft z. s0 'as to turntherewith as well as toslide upon thesame by meansv of a key andkeywayconnection. The cam sleeve isralso situated between two parts of thesliding ,frameI -g so thatl when the latter is moved it also moves orslides the cam 'along the said'rotaryshaft. The pawl it is held inposition. between two upstan'ding parts of theframe. (seehr3-1F ig. 4)by a 'pin it* on the pawl working in slots h5 in the up-y sta-ndingparts h3* and thev said pawl is rel: tained 1 fina-engagement -fwith--its operatingcamtby af spring h6 connected-tothe forward end-of thepawluand toa'fixed part off-the sliding-iframe. l TheI -pawl engageswith teeth4 clprovided'onfthe periphery .of the filmsupp'orting'memberzand for each revolutiofn ofthe'cam h2, the pawl h isfmoved forward andturns the film supporting member to 4the extentof onextooth.- The pawlin moving backv'vardfrunder':the- .influence of the spring is "depressedagainsbthe resistance ofthe spring inV sliding over 'or slip-- pingthernextwra'tchettooth. A' spring retaining device c? engagingtheratchet teeth c. holds fthe rfilm'supfporting member stationarywhenthe .latter-is not being moved by thepawlgand the pawl'f;may-.be soshaped as to come intocontact with a fixed Spin or the like when movedby the (Jann4 to prevent the pawl from turningefthe film supportingmember more thanrthefextent of one tooth foreach revolution of the'cam.In this modification of the apparatus, the station'- ary shaft Z) isprovided with a helicalslot or groove f2 and the film supporting memberc is provided with a tongue 03 or the like (see Figsl' and 9) whichprojects into the said groove in order that when the said member isrotated, it is also longitudinally displaced on the shaft. The tongue c3is in the form of aspring and bears against the side wall of the groovef2 so as to prevent longitudinal play between the shaft and the filmsupporting member c. T he film supporting member c is connected to `thesliding frame g by reason of ratchet teeth on its periphery rotating inthe slotted'portion g6 on the frame.

The film supporting member d in the eX- ample shown in Figs. 9 isdetachable connected to the film supporting member c through theintervention of longitudinal rods c4 secured to the member c. The freeends of the rods are secured to a circular ring d which constitutes thesupport or seating for the detachable member d and the member d may beprovided with. diametrically opposite slots d2 for thereception of thefree ends of a pair of the rods 0*,these endsbeing bent asshown c5 orotherwise suitably formedso that when the member d is in position on itsseating ring'd it can-y be retained-by a spring or resilient 4device (Z3engaging .the'isaid member:-i..axid.s the aforesaid bent ends of the-lrodsi The film supporting members are thus securely connected together,``and :they support film in` the mannerpreviously describedwith'reference to' the apparatus show-ninFi'g. 1.-f

The electric projecting lamp casing 'b2A isv .secured tothe shaft in an-appropriate manner and theielectriccurrentto the lamp may `besupplied,V as'aforesaid;y The lens as may Abey 'adjusted for focusing bythe rackf and pinion; gearing, 'rbut` in= the .A example shown in Figs.4, 10, 11 and 12,thel's a,djust `ment of the lens `may be effectedizinla' some- :am in the tubular member'w'containing the5 sleeve 1113.VIThe`feXti'emity:of= the'shaft ani fits intoxthe circular' opening aland is profv vided with an eccentrically disposed pin or projectionVa17-i=(seeF ig. 12) 1'whicli fits into the hole (13 in -the sleevesothat when the rod is rotated thepsleeve is Amovedv backward andforward byithe eccentric pin 17v to obtain 'the desiredfiadjustment.The' tubular member alisfalso 4adapted to carry.i a view` finderwhichifisy provided with a'v suitablelens or glass al@x secured in anadjustable sleeve or eyepiece a and arranged immediately above themirror al situated as shown in 10. The object to be photographed can befocused on to the mirror a when the film e is in position, 'see Fig. 10,and it can be observed on the lens or glass am inthe eye-piece through asuitable aperture in the lid of the casing a, which aperture. can beclosed by a movable cover plate not shown. 'l

LBefore the film' is placed on the supporting members c (l itis vin theform of a strip or band the free endsof which must be connected togetherto obtain the endless or cylindrical formation. One way of accomplishingthis is shown in Figs. 13 and 14, wherein c represents the film stripone end of whichis provided with metal tabs e which can be inserted inslits e2 or the like in the other end of the film strip and then bent orturned over to retain or connect the ends of the film strip, as shown inFig. 14.

Although the'shaft which supports the film drum is referred to as beingstationary, it may be so mounted that it is capable of beinglongitudinally moved to a limited extent to enable the pictures on thefilm or the like to be registered correctly with the opening or lensthrough Which they are to be observed or projected For this purpose thesaid shaft may be screw threaded at one end to engage a threaded bush orthe like, so that on slightly rotating the shaft by a suitable exteriorhandle, it can be moved longitudinally to the desired extent. The shaftis otherwise held stationary to enable the longitudinal movement of thedrum to be effected as aforesaid.

What we claim and desire to secure by Letters Patent of the UnitedStates is 1. Kinematographic apparatus comprising in combination, meansfor engaging with the edges of a cylindrically formed film. to supportthe film rigid, and mechanism for rotating and simultaneously movingsaidsupporting means in a longitudinal f direction.

2. Kinematographic apparatus comprising in combination, two co-axialfilm supporting members `engaging with the edges of a cylindricallyvformed film to maintain the latter rigid, means for detachablyconnecting said members, and means for simultaneously rotating andlongitudinally moving the said film-supporting members when they areconnected together.

`3. Kinematographic .apparatus -comprising in combination, a filmsupporting means engaging with theedges of a cylindrically formed filmAto maintain the latter rigid, teeth .on said means, an actuating deviceengaging said teeth Lto rotate said means, and mechanism forlongitudinally moving said film supporting means and said actuatingdevice.

4. Kinematographic apparatus compris? ing in Combination, alongitudinally stationa ry shaft, a film supporting means movablymounted on said shaft and engagingr with the edges of a cylindricallyformed film to maintain the latter rigid, teeth on said means, anoperating shaft parallel to said stationary shaft, an actuating devicefor engaging said teeth slidably mounted on said operating shaft,gearing for actuating said operating shaft, and mechanism for movingsaid film supporting means and the actuating device along said shafts.

Kinematographic apparatus comprising in combination, means for engagingwith the edges of a cylindrically formed film to maintain the latterrigid, mechanism for rotating and simultaneously moving said supportingmeans in a longitudinal direct-ion` and a stationary projecting lamparranged between the edges of said film.

G. Kinematographic apparatus comprising in combination, two filmsupporting members, means for detachably connecting said members,inclined surfaces on said members adapted to engage the edges of acylindrically formed film to maintain the latter rigid, and means forsimultaneously rotating and longitudinally moving said members when theyvare connected together.

7. Kinematographic apparatus, comprising two film supporting membersengaging with the edges of a cylindrically formed film to maintain itrigid, connecting means secured to one of them and adapted to receivethe other of said members, a contrivance for securing said secondmentioned member in position, means engaging one of said members torotate the two of them, and mechanism for longitudinally moving saidmembers.

8. Kinematographic apparatus comprising in combination, two annular filmsup-` porting members engaging with the edges of a cylindrically formedfilm to maintain it rigid, a plurality of thin rods secured to one ofsaid members, a seating secured to said rods and adapted to receive theother iof said members, a device for engaging said rods to retain saidsecond member on said seating, and mechanism for simultaneously rotatingand longitudinally moving said film supporting'members when connectedtogether.

9. Kinematographic apparatus comprising in combination, `a rotatablefilm supporting means for engaging with the edges of a. cylindricallyformed film to maintain the latter rigid, a peripheral toothed portionon said means, a longitudinally slidable frame provided with a slottedpart adapted 'to receive said toothed portion, an actuating device forengaging said teeth and carried by said frame, and mechanism for longi-=tudinally vmoving said film supporting 1means and said slidable frame.

10. Kincmatographic apparatus comprising in combination, alongitudinally movable film supporting means engaging With thel edges-ofa cylindrically formed film to maintain the latter rigid, teeth on saidmeans, a rotating shaft, a frame slidably mounted on said shaft, apawl-carried by said frame engaging said teeth, an operating camengaging said pawl slidably mounted on and rotated by said shaft, andmechanism for longitudinally moving said film supporting means and thesliding frame.

11. linematographic apparatus comprising in combination, means forengaging with the edges of' a cylindrically formed film to maintain thelatter rigid, mechanism for rotating and simultaneously moving saidsupporting means in a longitudinal direction, and a View flnder devicehaving an aperture arranged close to said film to cooperate with saidfilm to enable the picture to be seen in the view finder.

12. Kinematographic apparatus comprising in combination, means engagingwith the edges of a cylindrically formed film to maintain it rigid,mechanism for rotating and simultaneously moving said supporting meansin a longitudinal direction, a View finder having an aperture arrangedclose to said film to cooperate with said lm to enable the picture to beseen in the view finder, and a taking or projecting lens adapted to beheld in said View finder device.

13. Kinematographic apparatus comprising in combination, means forengaging with the edges of a cylindrically formed film to maintain thelatter rigid, mechanism for rotating and simultaneously moving saidsupporting means in a longitudinal direction, a view nder device havingan aperture arranged close to said film to cooperate with said film toenable the picture to be seen 1n the view finder, a taking or projectinglens adapted to be held in said view finder device, a casing for a lensmounted in said view finder, and means for adjusting said lens casing.

14. Kinematographic apparatus comprising in combination, a strip filmprovided with means at its extremity for retaining said film in acylindrical form, and two film supporting members for engaging with theedges of a cylindrically formed film to maintain it rigid.

In testimony whereof we affix our signatures in presence of twoWitnesses.

THOMAS HORACE BOLAM.

SIDNEY NORMAN BARNARD. Witnesses:

HAROLD A. SMITH,

T. SELBY WARDLE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

